We’re having a lively discussion on the DCist staff email list today thanks to this fantastic piece penned by the always compelling Hank Stuever of the Washington Post’s Style section. Are you a Wawa or a Sheetz person? The subhead says it all: “Both So Awesome, but You Must Choose.” Here’s how we’re coming down so far in the regional convenience store divide: Music Editor Amanda Mattos: “I think they’re both pretty equal. I’ve…